the us defence secretary lisa on the keys to keep china's newly declared air defense identification zone. and if the world through go inside the heat you can show you that it is a complex operation to revoke the nuclear fuel. and south koreans generally preferred by now more and more people are turning to his bicycle us defence secretary says the biggest concern for washington is how china declared its air defense identification zone track a goal said. other countries should have been consulted on him first. it's not good the news itself is new. or unique. he is concerned we have. is how it was. and i'm so new lateral. and so immediately without any consultation last month chinese defense official said all foreign aircraft traveling through this all must give prior notice and follow orders or face emergency measures a goal said the declaration was not a wise course of action joint chiefs of staff chairman martin dempsey said the requirements do not conform to international norms. it wasn't the declaration of the ages that actually it was de stabilizing or was their assertion that they wo